Road machine



W. A. WEIKEL Aug. 2, 1932.

ROAD MACHINE 1931 5 Sheets-Sheet 1 Filed July 25 W. A. WEIKEL ROADMACHINE Aug. 2, 1932.

Filed July 23, 1931 6 Sheets-Sheet 2 William A. Weikel flllorney Aug. 2,1932. W, A WEIKEL ROAD MACHINE 5 Sheets-Sheet 5 Filed July 23, 1931 gmmPatented Aug. 2 1932 PATENT, OFFICE WILLIAM WEIKEL, OF POTTSVILLE,PENNSYLVANIA.

ROAD MACHINE, 1

Application filed July 23, 1931. serial No. 552,715.

The present invention relates to new and useful improvements in roadmachines and has for its primary object to provide, in a manner ashereinafter set forth, a device of 1 this character embodying a novelconstruction, combination and arrangement of parts through the medium ofwhich a shoulder may be formed adjacent a highway and a bank which maybe adjacent said highway may be simultaneously graded or sloped.

Another important object of the invention is to provide a road machineof the aforementioned type embodying a novel construction andarrangement whereby the endless scrap- 1 er unit constituting anessential portion of the invention may beexpeditiously' adjusted asdesired for sloping the bank at any desired inclination and for formingthe shoulder as desired. j 7 Other objects of the invention are toprovide a road machine of the character described which will be simplein construction, strong, durable, elficient and reliable in operationand which may be manufactured at 2.5 low cost.

All of the foregoing and still further-objects and advantagesof theinvention will become apparent from a study of the followingspecification, taken in connection with T3 the accompanying drawingswherein like characters of reference designate corresponding partsthroughout the several views,

and wherein j Figure 1 is a view in rear elevation of a i 1 portion ofthe machine.

Figure 1 is a vlew in rear elevation showing the portion of the'machinewhich is omitted from Figure 1 Figure 2 is a view in top plan of theroad machine. 7

Figure 3 is a detail view showing the position of one of the scraperblades.

Figure dis a view partially in bottom plan and partially in sectionshowing the means for adjusting'the endless scraper.

Figure 5 is a view in elevation showing the means for adjusting theendless scraper. Referring now to the drawings in detail, it will beseen that the reference numerall if? designates a cab which is mountedfor rota "connected to the members 14: and ofthe tion on the supportingwheels or the equivalent 2 by a turn table 3. A chassis 4 is disposedbetween'the cab 1 and theturn table 3.

The reference numeral 5 designates an intergial combustion enginelocated within the ca 1.

Mounted for swinging movement in a vertical plane on one end of theframe l is a boom 6 including side portions or bars, said boom havin thedownward extension 7 at its inner en The boom 6 is raised or loweredthrough the medium of a cable 8 having one end anchored, as at 9, saidcable being trained over pulleys l0 and 11 and being windable on adrum12 which is operatively connected to the engine 5 for actuationthereby. As clearly seen, the pulley 10 is mounted on the free endportion of the boom 6 and the pulley 11 is mounted on the cab 1.

The boom 6 operatively supports an endless scraper designated generallyby the ref erence numeral 13, said scraper 13 including a pair ofcomparatively short inn-er side members 14 hingedly' mounted between thelower end portions of the extension 7 of the II boom 6 and a pair ofcomparatively long outer side members'15. pivotally connected .to themembers 14. Sprockets 16 are provided in pairs between the membersl land 15 of the endless scraper 13 and said sprockets are operativelyengaged with the lower flights of the endless chains 17. Diagonallydisposed scraperblades 18 are mounted on the chains 17 for engagementwith the ground. The leading end of the blades 18 may be toothed tofacilitate cutting through theground when the machine is in operation.As clearly'seen in Figure 1 of the drawings, the upper end of theendlessscraper 13 is slidably supported on the boom 6, I as indicated at 19. ii

A substantially inverted 'U-shaped bracket 20 extends between the sidemembers'or bars constituting the boom 6 and extending between the sideportions of saidbracket is a bar 21. A screw shaft 22 is operablethrough the bar 21"and thebracket 20 and has its lower end rotatably.connected to" a yoke 23. The lower end of the yoke 23 is pivotallyendless scraper 13 at the hinged joint of said members. A worm gear 24is threadedly mounted on the screw shaft 22 between the bracket 20 andthe bar 21. Bearings 25 are provided on the bracket 20 and journaled insaid bearings is a worm 26 which is operatively engaged with the wormgear 24. A telescopic sectional shaft 27 has one end connected with theworm 26 by a universal joint 28 and mounted on the other end of theshaft 27 and located within the cab 1 is an actuating wheel 29. Byactuating the worm gear 24 in a manner to raise or lower the yoke 23,the angle between the members 14 and 15 of the endless scraper 13 may bevaried as desired'for forming the shoulder and for sloping the bank atany desired inclination. The reference numeral 30 designates asubstantially inverted U-shaped bracket mounted on the boom 6 at theinn-er or hinged end of said boom. A screw shaft 31 is operable throughthe bracket 30 and has rotatably connected to its lower end a okesimilar to the yoke 23 which, in turn, 1s connected at its lower end tothe inner ends of the members 14. The innermost pair of the sprockets 16are fixed on a shaft which extends through vertical slots 32 providedtherefor in the depending portions 7 of the boom 6. A worm gear 33 isoperatively mounted on the screw shaft 31 and, when actuated,constitutes means for raising and lowering the inner end of the endlessscraper 13. A sectional telescopic shaft 34 has one end connected by auniversal joint similar to the joint 28 to a worm similar to the worm 26which is operatively engaged with the worm gear 33. Fixed on the otherend of the shaft 34 within the cab 1 is an actuating hand wheel 35.Extending downwardly and inwardly from the inner end portions of themembers 14 of the endless scraper 13 is a pair of arms 36 which supportan inclined chute 37 It will be noted that the inner end portions of themembers 14 extend upwardly at a slight angle sufiicient to raise thescraper blades 18 in a manner to clear the lower end of the chute 37. Anendless conveyor 38 is supported by any suitable means as at 39, on theframe 4, said endless conveyor extending forwardly and upwardly andhaving its lower end portion disposed transversely beneath the upper ordischarge end of the chute 37 to receive the material from said chute.The conveyor 38 is mounted for vertical swinging movement and isadjustable through the medium of a cable 40 trained over suitablepulleys 41 and operatively connected with the upper end of the conveyor,said cable 40 being windable also on the drum 12. The conveyor 38constitutes means for loading the material into a vehicle locatedforwardly of the machine.

The reference numeral 42 designates a. vertically disposed shaft mountedon the depending extension 7 of the boom 6 and having splined on itslower portion a beveled gear fixed on one of the projecting end portionsof the shaft which drives the chains 17. A shaft 44 is mounted on theframe 4 and has one end operatively connected to the shaft 42 bysuitable gears designated generally at 45. The other end of the shaft 44is operatively connected to the transmission of the engine 5 by asuitable shaft and gear connection designated generally by the referencenumeral 46. The endless conveyor 38 is operatively connected with anintermediate portion of the shaft 44 through the medium of a chain andsprocket connection designated generally by the reference numeral 47. Aplate 48 is mounted closely adjacent the rear side of the endlessscraper 13 to prevent dirt from spilling over the graded slope orshoulder.

When the machine is in use, the diagonally disposed blades 18 travelbeneath the sprocket wheels 16 and scrape the dirt from the slope andshoulder adjacent the highway over the chute 37 and deposit the same onto the endless conveyor 38 which carries the material forwardly andupwardly and deposits said same in a vehicle located beneath thedischarge end of the conveyor. By operating the hand wheels 29 and 35the inclination of the shoulder and the slope may be regulated asdesired and, as before stated, the entire endless scraper may be swungupwardly or downwardly through the medium of the cable 8 connected tothe boom 6. An important feature of the invention resides in theconstruction and arrangement whereby the angle of the endless scrapermay be varied as desired to form the shoulder or the slope at anyinclination which may be desired.

It is believed that the many advantages of a road .machine constructedin accordance with the present invention will be readily understood, andalthough the preferred embodiment of the invention is as illustrated andde scribed, it is to be understood that changes in the details ofconstruction and in the combi nation and arrangement of partsmay beresorted to which will fall within the scope of the invention asclaimed.

What is claimed is 1. A road machine comprising a mobile support, a boommounted on the support, an endless scraper operatively mounted on theboom, said scraper including inner and outer hingedly connected sidemembers, sprockets mounted on the side members, endless chains trainedon the sprockets, scraper blades mounted on the chains, means pivotallyconnecting the inner side members, at their inner ends to the inner endof the boom, means adj ustably connecting the hingedly connected ends ofthe side members to the boom, remotely controlled means for actuatingthe adjustment and means for actuating the end- I less scraper.

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2. A road machine comprising a mobile support, a boom mounted forvertical swinging adjustment on the support, means for swinging the'boomon the support, an endless scraper operatively mounted on the boom, saidscraper including inner and outer hingedly connected side members,sprockets mounted on the side members, endless chains trained on thesprockets, scraper blades mounted diagonally on the chains, meansconnecting the inner side members, at their inner ends, to the inner endof the boom for swinging and vertical movement on said boom,meansadjustably connecting the hingedly connected ends of the sidemembers to an intermediate portion of the boom, and means slidablyconnecting the outer ends of the outer members to the free end portionof the boom, and means for actuating the endless scraper.

3. A road machine comprising a mobile support, a boom mounted forswinging movement in a vertical plane on the support, an endless scraperoperatively mounted on the boom, said scraper including inner and outerhingedly connected side members disposed at an angle with respect toeach other, sprockets rotatably mounted on the side members, endlesschains trained on the sprockets, scraper blades mounted on the chains,means connecting the inner members, at their inner ends, to the innerend of the boom for swinging and vertical sliding movement, means adjustably connecting the hingedly connected ends of the side members tothe boom for varying the angle between said inner and outer sidemembers, means slidably connecting the outer ends of the outer sidemembers to the free end portion of the boom, an endless conveyor mountedon the support adjacent the inner end of the endless scra er, a chutedisposed beneath the inner en portion of the endless scraper andextending therefrom over one end portion of the endless conveyor forcarrying material on to said endless conveyor, means for actuating theendless conveyor, means for actuating the endless scraper. a

4. A road machine comprising a mobile support, a boom mounted forswinging movement in a vertical plane on the support, an endless scraperoperatively mounted on the boom, said scraper including inner and outerhingedly connected side members disposed at an angle with respect toeach other, sprockets rotatably mounted on the side members, endlesschains trained on the sprockets, scraper blades mounted on the chains,means connecting the inner members, at their inner ends, to the innerend of the boom for swinging and vertical sliding movement, meansadjustably connecting the hingedly connected ends of the side members tothe boom for varying the angle between said inner and outer sidemembers, means slidably connectto the first named meansfor raising orlowering the inner end of the endless scraper, and manually operablemeans connected to the second named means for raising or lowering theintermediate portion of the endless scraper.

In testimony whereof I aflix my signature.

WILLIAM A. WEIKEL.

